where "n" = the number of half lives that have elapsed
1. Write the definition of Half Life from your notes.
2. Get a paper plate and a cup full of M & M's. Dump out the candy and determine the mass of the cup.
The mass of the cup is ____________grams.
3. Count the candy and complete the table below.
| Yellow | Orange | Red | Green | Blue | Black | Total | ||
| # in Cup | ||||||||
| % of Sample |
4. Put the candy back in the cup and determine the mass of the cup and the candy.
Compute the mass of the candy and place the amount in the table in row "0" under "Measured Mass"
5. Dump out the candy into the paper plate. Eat all the candy that has the "M" showing.
6. Take the remaining candy and put it back in the cup. Determine the mass of the cup and the candy.
Compute the mass of the candy and place the amount in the table in row "1" under "Measured Mass"
7. Repeat step 6 until all candy is gone, or the table is full.
8. Compute the mass that should be remaining.
9. Compute the actual percentage remaining.
| Half Life Elapsed | Measured Mass (g) | Computed Mass (g) | % Remaining |
| 0 | --------------- | 100% | |
| 1 |
|
||
| 2 | |||
| 3 | |||
| 4 | |||
| 5 | |||
| 6 |
Continue to the back of this sheet.
10. Why is there a difference between the computed mass and the measured mass in the table above?
11. Draw a chart of the data in the first table in the area below. Select the proper chart type.
12. Draw a chart of the data in the second table in the area below, graphing half-lives elapsed against measured mass.
13. Attach your graphs to this sheet.
Atomic Bomb DVD Journal Entry
20 points
Watch the first 2 chapters of the Atomic Bomb Movie DVD.
Write a journal entry of 200 words describing any aspect of the movie you wish.
Attach your notebook paper.